I use Trimble Business Center rather than Topcon. But the concept is the same. I load static (from TBC) and RTK (direct from job file) baseline vec...

I really loved my HP41CX. I used that for many years before PC's, and wrote a lot of programs. Astro, state plane, UTM, data collection with a T2, pla...

Somehow I missed this thread when it was started, just saw it for the first time today. As someone who has been doing monitoring surveys (over 600) ...

GPS only will work fine on a tractor. Note that if you use a radio with UHF frequencies it must be licensed. An alternative is to use a spread spectru...

I have a Trimble high precision S6 bought in 2006 that still works great. The only reason I don't use it anymore on our deformation surveys is that th...

@mathteacher No, azimuth is not an option in a DV. You can put azimuth in a B record by itself or a BM record with distance, vertical angle, etc

I process all of my total station data by reducing the distance and vertical angles to mark-to-mark values (using the observed zenith angles and the H...

After 2020 we no longer do the survey every year, now we are doing it on a 5 year schedule with each survey being bluebooked. So we are doing it again...

As Shelby mentions, I load in the proposed coordinates for imagery/LiDAR control points into my Garmin. I load in a csv file (longitude,latitude,name)...

We are currently working on a bluebook leveling project that we repeat every 5 years and submit to NGS. We used to do it every year and then BB every ...

@jimcox ? I believe you are from NZ (correct me if I am wrong). No visa required, just ESTA. But yeah, it is getting expensive

@dgm-pls I don't know of any list. But I think in many states this might fall under engineering in addition to survey

I will be there, never missed one since the first in Silicon Valley way back in ????

In my opinion you get better results from RTX

@lurker In PA you could set those. Or hub and tack. Or nothing at all (as many do)

The resemblance is uncanny 🤓  

I developed a method to use the moon rather than the sun. This can be easier since no filter is required, but the moon moves faster so it requires a b...

When accurate time was not available, you needed to observe the vertical angle to the sun as well as the horizontal. Refraction added uncertainty, so ...

I use those commands on the command line, not in a browser. Not sure if that makes a difference.

mtlg, wysh downloaded no problem using the amazonaws site and curl...I did both on 274 and wysh on 282...   curl -Obr />curl -O/p>   ...